Bump the cross-repo-tests ruby version to 3.3

Author: agrare

.github/workflows/manageiq_cross_repo.yaml

@@ -15,7 +15,7 @@ on:
       ruby-version:
         required: false
         type: string
-        default: '["3.0"]'
+        default: '["3.3"]'
       node-version:
         required: false
         type: string